var Excomm= {
    transDate: function (stamp) {
        var date = new Date(stamp);
        var Y = date.getFullYear() + '-';
        var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-';
        var D = date.getDate();

        return Y + M + D;

    }
}
